Home / 2,120.91-3,182.61-888.23

Finding the Fourth Proportional to 2,120.91, 3,182.61 and 888.23

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Solution

The fourth proportional to 2,120.91, 3,182.61 and 888.23 is: 1,332.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,120.91 : 3,182.61 = 888.23 : x
  2. Step 2: Convert to fraction form
    2,120.91/3,182.61 = 888.23/x
  3. Step 3: Cross multiply
    2,120.91x = 3,182.61 × 888.23
  4. Step 4: Simplify right side
    2,120.91x = 2,826,873.77
  5. Step 5: Solve for x
    x = 2,826,873.77/2,120.91
  6. Step 6: Final answer
    x = 1,332.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.